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                    12.2020-01-16-java基本语法
            
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                    [arthas]
            
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                    1.2019-12-28-arthas-example
            
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                    3.2020-01-10-思考性能调优
            
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                    5.2020-01-10-性能调优举例一
            
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                    6.2020-01-10-性能调优举例三
            
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                    7.2020-01-10-性能调优举例二
            
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                    8.2020-01-10-性能调优举例四
            
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                    9.2020-01-15-性能调优举例五
            
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                    10.2020-05-12-性能调优举例六
            
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                    11.arthas-mind-map
            
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                    1.2019-12-28-dubbo涉及的技术
            
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                    3.2019-12-30-dubbo面试
            
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                    2.2020-01-13-ThreadLocal六连问
            
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                    [jvm]
            
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                    1.2019-12-30-性能调优
            
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                    [netty]
            
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                    1.2020-01-16-netty入门
            
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                    2.2020-01-16-netty核心概念
            
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                    1.2019-12-28-solr-7.6.0.tgz安装
            
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                    [spring]
            
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                    1.2020-01-12-SpringBoot属性读取方式介绍
            
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        <li class="chapter " data-level="2.13.2" data-path="../spring/2020-01-12-使用spring boot+mybatis plus快速入门.html">
            
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                    2.2020-01-12-使用spring boot+mybatis plus快速入门
            
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        <li class="chapter " data-level="2.13.3" data-path="../spring/2020-01-13-spring-initMethod-destoryMethod.html">
            
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                    3.2020-01-13-spring-initMethod-destoryMethod
            
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        <li class="chapter " data-level="2.13.4" data-path="../spring/2020-01-13-spring循环依赖.html">
            
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                    4.2020-01-13-spring循环依赖
            
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        <li class="chapter " data-level="2.13.5" data-path="../spring/2020-01-13-spring源码随记.html">
            
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                    5.2020-01-13-spring源码随记
            
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        <li class="chapter " data-level="2.13.6" data-path="../spring/2020-01-13-自定义mini-spring.html">
            
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                    6.2020-01-13-自定义mini-spring
            
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        <li class="chapter " data-level="2.14" >
            
                <span>
            
                    
                    [websocket]
            
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        <li class="chapter active" data-level="2.14.1" data-path="2019-12-30-webscoket-springboot通信.html">
            
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                    1.2019-12-30-webscoket-springboot通信
            
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                <span>
            
                    
                    [linux]
            
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        <li class="chapter " data-level="2.15.1" data-path="../../linux/2019-12-28-Linux常用命令和快捷键.html">
            
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                    1.2019-12-28-Linux常用命令和快捷键
            
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        <li class="chapter " data-level="2.15.2" data-path="../../linux/2019-12-28-从零到一环境安装.html">
            
                <a href="../../linux/2019-12-28-从零到一环境安装.html">
            
                    
                    2.2019-12-28-从零到一环境安装
            
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        <li class="chapter " data-level="2.15.3" data-path="../../linux/2019-12-30-vi-常用命令.html">
            
                <a href="../../linux/2019-12-30-vi-常用命令.html">
            
                    
                    3.2019-12-30-vi-常用命令
            
                </a>
            

            
        </li>
    
        <li class="chapter " data-level="2.15.4" data-path="../../linux/2019-12-31-awk命令.html">
            
                <a href="../../linux/2019-12-31-awk命令.html">
            
                    
                    4.2019-12-31-awk命令
            
                </a>
            

            
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        <li class="chapter " data-level="2.15.5" data-path="../../linux/2019-12-31-cup信息分析.html">
            
                <a href="../../linux/2019-12-31-cup信息分析.html">
            
                    
                    5.2019-12-31-cup信息分析
            
                </a>
            

            
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        <li class="chapter " data-level="2.15.6" data-path="../../linux/2019-12-31-shell编程.html">
            
                <a href="../../linux/2019-12-31-shell编程.html">
            
                    
                    6.2019-12-31-shell编程
            
                </a>
            

            
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        <li class="chapter " data-level="2.15.7" data-path="../../linux/2019-12-31-top命令.html">
            
                <a href="../../linux/2019-12-31-top命令.html">
            
                    
                    7.2019-12-31-top命令
            
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        <li class="chapter " data-level="2.15.8" data-path="../../linux/2019-12-31-普通用户docker的问题.html">
            
                <a href="../../linux/2019-12-31-普通用户docker的问题.html">
            
                    
                    8.2019-12-31-普通用户docker的问题
            
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        <li class="chapter " data-level="2.15.9" data-path="../../linux/2020-01-01-centos7 安装kubernetes.html">
            
                <a href="../../linux/2020-01-01-centos7 安装kubernetes.html">
            
                    
                    9.2020-01-01-centos7 安装kubernetes
            
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        <li class="chapter " data-level="2.15.10" data-path="../../linux/2020-01-01-centos安装常用配置.html">
            
                <a href="../../linux/2020-01-01-centos安装常用配置.html">
            
                    
                    10.2020-01-01-centos安装常用配置
            
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        <li class="chapter " data-level="2.15.11" data-path="../../linux/2020-01-01-docker使用.html">
            
                <a href="../../linux/2020-01-01-docker使用.html">
            
                    
                    11.2020-01-01-docker使用
            
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        <li class="chapter " data-level="2.15.12" data-path="../../linux/2020-01-01-kubernetes使用.html">
            
                <a href="../../linux/2020-01-01-kubernetes使用.html">
            
                    
                    12.2020-01-01-kubernetes使用
            
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        <li class="chapter " data-level="2.15.13" data-path="../../linux/2020-05-12-PG有用的SQL.html">
            
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                    13.2020-05-12-PG有用的SQL
            
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        <li class="chapter " data-level="2.15.14" data-path="../../linux/2020-05-12-vim命令.html">
            
                <a href="../../linux/2020-05-12-vim命令.html">
            
                    
                    14.2020-05-12-vim命令
            
                </a>
            

            
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            </ul>
            
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        <li class="chapter " data-level="2.16" >
            
                <span>
            
                    
                    [automate]
            
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            <ul class="articles">
                
    
        <li class="chapter " data-level="2.16.1" data-path="../../linux/automate/2020-01-12-redis伪集群创建脚本.html">
            
                <a href="../../linux/automate/2020-01-12-redis伪集群创建脚本.html">
            
                    
                    1.2020-01-12-redis伪集群创建脚本
            
                </a>
            

            
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        <li class="chapter " data-level="2.16.2" data-path="../../linux/automate/2020-01-12-tomcat集群创建脚本.html">
            
                <a href="../../linux/automate/2020-01-12-tomcat集群创建脚本.html">
            
                    
                    2.2020-01-12-tomcat集群创建脚本
            
                </a>
            

            
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        <li class="chapter " data-level="2.16.3" data-path="../../linux/automate/2020-01-12-zookeeper自动化脚本.html">
            
                <a href="../../linux/automate/2020-01-12-zookeeper自动化脚本.html">
            
                    
                    3.2020-01-12-zookeeper自动化脚本
            
                </a>
            

            
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        <li class="chapter " data-level="2.16.4" data-path="../../linux/automate/2020-01-12-其他自动化脚本.html">
            
                <a href="../../linux/automate/2020-01-12-其他自动化脚本.html">
            
                    
                    4.2020-01-12-其他自动化脚本
            
                </a>
            

            
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            </ul>
            
        </li>
    
        <li class="chapter " data-level="2.17" >
            
                <span>
            
                    
                    [MySQL]
            
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        <li class="chapter " data-level="2.17.1" data-path="../../MySQL/2019-12-31-mysql常用命令.html">
            
                <a href="../../MySQL/2019-12-31-mysql常用命令.html">
            
                    
                    1.2019-12-31-mysql常用命令
            
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            </ul>
            
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        <li class="chapter " data-level="2.18" >
            
                <span>
            
                    
                    [nginx]
            
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        <li class="chapter " data-level="2.18.1" data-path="../../nginx/2019-12-29-Nginx-Keepalived高可用集群.html">
            
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                    1.2019-12-29-Nginx-Keepalived高可用集群
            
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                    2.2020-01-16-nginx参数详细说明
            
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        <li class="chapter " data-level="2.19" >
            
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                    [other]
            
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        <li class="chapter " data-level="2.19.1" data-path="../../other/2019-12-28-知识小计.html">
            
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                    1.2019-12-28-知识小计
            
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        <li class="chapter " data-level="2.19.2" data-path="../../other/2020-01-04-科学上网.html">
            
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                    2.2020-01-04-科学上网
            
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        <li class="chapter " data-level="2.19.3" data-path="../../other/2020-05-13-正则表达式.html">
            
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                    3.2020-05-13-正则表达式
            
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        <li class="chapter " data-level="2.19.4" data-path="../../other/template.html">
            
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                    4.template
            
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            </ul>
            
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        <li class="chapter " data-level="2.20" >
            
                <span>
            
                    
                    [PostgreSQL]
            
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        <li class="chapter " data-level="2.20.1" data-path="../../PostgreSQL/2019-12-28-PostgreSQL安装文档.html">
            
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                    1.2019-12-28-PostgreSQL安装文档
            
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        <li class="chapter " data-level="2.20.2" data-path="../../PostgreSQL/2019-12-28-Postgres学习笔记.html">
            
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                    2.2019-12-28-Postgres学习笔记
            
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        <li class="chapter " data-level="2.20.3" data-path="../../PostgreSQL/2019-12-28-脚本MYSQL导出数据到PG.html">
            
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                    3.2019-12-28-脚本MYSQL导出数据到PG
            
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        <li class="chapter " data-level="2.20.4" data-path="../../PostgreSQL/2020-01-04-docker-PostgreSQL安装文档.html">
            
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                    4.2020-01-04-docker-PostgreSQL安装文档
            
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        <li class="chapter " data-level="2.20.5" data-path="../../PostgreSQL/2020-01-17-阿里云PG主从切换问题.html">
            
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                    5.2020-01-17-阿里云PG主从切换问题
            
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        <li class="chapter " data-level="2.21" >
            
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                    [python]
            
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        <li class="chapter " data-level="2.21.1" data-path="../../python/2019-12-28-pip-install指定国内源镜像.html">
            
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                    1.2019-12-28-pip-install指定国内源镜像
            
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        <li class="chapter " data-level="2.21.2" data-path="../../python/2019-12-30-python内置函数.html">
            
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                    2.2019-12-30-python内置函数
            
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        <li class="chapter " data-level="2.21.3" data-path="../../python/2019-12-30-一图搞懂基本python语法 .html">
            
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                    3.2019-12-30-一图搞懂基本python语法 
            
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                    [redis]
            
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                    1.2019-12-28-redis5.0.3安装
            
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        <li class="chapter " data-level="2.22.2" data-path="../../redis/2019-12-28-redis5.0.3集群搭建.html">
            
                <a href="../../redis/2019-12-28-redis5.0.3集群搭建.html">
            
                    
                    2.2019-12-28-redis5.0.3集群搭建
            
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            </ul>
            
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        <li class="chapter " data-level="2.23" >
            
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                    [tool]
            
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                    1.2019-12-28-idea高效使用技巧和快捷键
            
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        <li class="chapter " data-level="2.23.2" data-path="../../tool/2019-12-28-PlantUML画图脚本.html">
            
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                    2.2019-12-28-PlantUML画图脚本
            
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        <li class="chapter " data-level="2.23.3" data-path="../../tool/2019-12-30-vscode高效使用.html">
            
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                    3.2019-12-30-vscode高效使用
            
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                    [windows]
            
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                    1.2020-01-12-本地服务成为互联网服务
            
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        <li class="chapter " data-level="2.24.2" data-path="../../windows/2020-01-12-注册bat为windows服务.html">
            
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                    2.2020-01-12-注册bat为windows服务
            
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                                <p>&#x8FD9;&#x6B21;&#x7ED9;&#x5927;&#x5BB6;&#x8BF4;&#x4E00;&#x4E0B;&#x81EA;&#x5DF1;&#x5BF9;websocket + spring boot&#x7ED3;&#x5408;&#x4F7F;&#x7528;&#x7684;&#x4E00;&#x4E9B;&#x7ECF;&#x9A8C;</p>
<h2 id="websocket&#x662F;&#x4EC0;&#x4E48;">websocket&#x662F;&#x4EC0;&#x4E48;</h2>
<p>&#x9996;&#x5148;websocket&#x662F;&#x4E00;&#x4E2A;&#x6301;&#x4E45;&#x5316;&#x7684;&#x534F;&#x8BAE;&#xFF0C;&#x5B9E;&#x73B0;&#x4E86;&#x6D4F;&#x89C8;&#x5668;&#x4E0E;&#x670D;&#x52A1;&#x5668;&#x7684;&#x5168;&#x53CC;&#x5DE5;&#x901A;&#x4FE1;&#x3002;&#x4E0D;&#x518D;&#x50CF;http&#x90A3;&#x6837;&#xFF0C;&#x53EA;&#x6709;&#x5728;&#x6D4F;&#x89C8;&#x5668;&#x53D1;&#x51FA;request&#x4E4B;&#x540E;&#x624D;&#x6709;response&#xFF0C;websocket&#x80FD;&#x5B9E;&#x73B0;&#x670D;&#x52A1;&#x5668;&#x4E3B;&#x52A8;&#x5411;&#x6D4F;&#x89C8;&#x5668;&#x53D1;&#x51FA;&#x6D88;&#x606F;&#x3002;</p>
<h2 id="pom&#x4F9D;&#x8D56;">pom&#x4F9D;&#x8D56;</h2>
<p>&#x4E0B;&#x9762;&#x6211;&#x4EEC;&#x7528;spring boot&#x6765;&#x5B9E;&#x73B0;&#x4E00;&#x4E0B;&#xFF1A;</p>
<p>&#x5728;spring boot&#x7684;&#x6587;&#x6863;&#x4E2D;&#xFF0C;&#x4ECB;&#x7ECD;&#x4E86;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x914D;&#x7F6E;&#x7684;&#x6587;&#x4EF6;
pom.xml</p>
<pre><code class="lang-xml"><span class="hljs-tag">&lt;<span class="hljs-name">dependency</span>&gt;</span>
            <span class="hljs-tag">&lt;<span class="hljs-name">groupId</span>&gt;</span>org.springframework.boot<span class="hljs-tag">&lt;/<span class="hljs-name">groupId</span>&gt;</span>
            <span class="hljs-tag">&lt;<span class="hljs-name">artifactId</span>&gt;</span>spring-boot-starter-websocket<span class="hljs-tag">&lt;/<span class="hljs-name">artifactId</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">dependency</span>&gt;</span>
</code></pre>
<h2 id="&#x914D;&#x7F6E;&#x7C7B;">&#x914D;&#x7F6E;&#x7C7B;</h2>
<p>&#x4E4B;&#x540E;&#x6211;&#x4EEC;&#x9700;&#x8981;&#x6DFB;&#x52A0;&#x4E00;&#x4E2A;&#x5355;&#x4F8B;bean&#xFF0C;&#x540D;&#x4E3A;ServerEndpointExporter</p>
<pre><code class="lang-java"><span class="hljs-meta">@Configuration</span>
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">WebSocketConfig</span> </span>{
    <span class="hljs-meta">@Bean</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> ServerEndpointExporter <span class="hljs-title">serverEndpointExporter</span> <span class="hljs-params">()</span></span>{
        <span class="hljs-keyword">return</span> <span class="hljs-keyword">new</span> ServerEndpointExporter();
    }
}
</code></pre>
<h2 id="&#x901A;&#x4FE1;&#x7C7B;">&#x901A;&#x4FE1;&#x7C7B;</h2>
<p>&#x63A5;&#x4E0B;&#x6765;&#x4FBF;&#x80FD;&#x4F7F;&#x7528;websocket&#x4E86;&#xFF0C;&#x4E0B;&#x9762;&#x662F;&#x4E00;&#x4E2A;&#x7B80;&#x5355;&#x7684;&#x4F8B;&#x5B50;&#xFF1A;</p>
<pre><code class="lang-java"><span class="hljs-meta">@ServerEndpoint</span>(<span class="hljs-string">&quot;/websocket&quot;</span>)
<span class="hljs-meta">@Component</span>
<span class="hljs-keyword">public</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">MyWebSocket</span> </span>{

    <span class="hljs-keyword">private</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">int</span> onlineCount = <span class="hljs-number">0</span>;

    <span class="hljs-keyword">private</span> <span class="hljs-keyword">static</span> CopyOnWriteArraySet&lt;MyWebSocket&gt; webSocketSet = <span class="hljs-keyword">new</span> CopyOnWriteArraySet&lt;&gt;();

    <span class="hljs-keyword">private</span> Session session;

    <span class="hljs-meta">@OnOpen</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onOpen</span> <span class="hljs-params">(Session session)</span></span>{
        <span class="hljs-keyword">this</span>.session = session;
        webSocketSet.add(<span class="hljs-keyword">this</span>);
        addOnlineCount();
        System.out.println(<span class="hljs-string">&quot;&#x6709;&#x65B0;&#x94FE;&#x63A5;&#x52A0;&#x5165;!&#x5F53;&#x524D;&#x5728;&#x7EBF;&#x4EBA;&#x6570;&#x4E3A;&quot;</span> + getOnlineCount());
    }

    <span class="hljs-meta">@OnClose</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onClose</span> <span class="hljs-params">()</span></span>{
        webSocketSet.remove(<span class="hljs-keyword">this</span>);
        subOnlineCount();
        System.out.println(<span class="hljs-string">&quot;&#x6709;&#x4E00;&#x94FE;&#x63A5;&#x5173;&#x95ED;!&#x5F53;&#x524D;&#x5728;&#x7EBF;&#x4EBA;&#x6570;&#x4E3A;&quot;</span> + getOnlineCount());
    }

    <span class="hljs-meta">@OnMessage</span>
    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">onMessage</span> <span class="hljs-params">(String message, Session session)</span> <span class="hljs-keyword">throws</span> IOException </span>{
        System.out.println(<span class="hljs-string">&quot;&#x6765;&#x81EA;&#x5BA2;&#x6237;&#x7AEF;&#x7684;&#x6D88;&#x606F;:&quot;</span> + message);
        <span class="hljs-comment">// &#x7FA4;&#x53D1;&#x6D88;&#x606F;</span>
        <span class="hljs-keyword">for</span> ( MyWebSocket item : webSocketSet ){
                item.sendMessage(message);
        }
    }

    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">sendMessage</span> <span class="hljs-params">(String message)</span> <span class="hljs-keyword">throws</span> IOException </span>{
        <span class="hljs-keyword">this</span>.session.getBasicRemote().sendText(message);
    }

    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">synchronized</span>  <span class="hljs-keyword">int</span> <span class="hljs-title">getOnlineCount</span> <span class="hljs-params">()</span></span>{
        <span class="hljs-keyword">return</span> MyWebSocket.onlineCount;
    }

    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">synchronized</span> <span class="hljs-keyword">void</span> <span class="hljs-title">addOnlineCount</span> <span class="hljs-params">()</span></span>{
        MyWebSocket.onlineCount++;
    }

    <span class="hljs-function"><span class="hljs-keyword">public</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">synchronized</span> <span class="hljs-keyword">void</span> <span class="hljs-title">subOnlineCount</span> <span class="hljs-params">()</span></span>{
        MyWebSocket.onlineCount--;
    }

}
</code></pre>
<h2 id="htmljs">HTML&amp;JS</h2>
<p>&#x4EE3;&#x7801;&#x5F88;&#x7B80;&#x5355;&#xFF0C;&#x76F8;&#x4FE1;&#x5927;&#x5BB6;&#x90FD;&#x80FD;&#x770B;&#x61C2;&#xFF0C;&#x63A5;&#x4E0B;&#x6765;&#x8D34;&#x4E00;&#x4E0B;html&#x4EE3;&#x7801;&#xFF1A;</p>
<pre><code class="lang-html"><span class="hljs-meta">&lt;!DOCTYPE HTML&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">html</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">head</span>&gt;</span>
    <span class="hljs-tag">&lt;<span class="hljs-name">base</span> <span class="hljs-attr">href</span>=<span class="hljs-string">&quot;localhost://localhost:8080/&quot;</span>&gt;</span>
    <span class="hljs-tag">&lt;<span class="hljs-name">title</span>&gt;</span>My WebSocket<span class="hljs-tag">&lt;/<span class="hljs-name">title</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">head</span>&gt;</span>

<span class="hljs-tag">&lt;<span class="hljs-name">body</span>&gt;</span>
Welcome<span class="hljs-tag">&lt;<span class="hljs-name">br</span>/&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">input</span> <span class="hljs-attr">id</span>=<span class="hljs-string">&quot;text&quot;</span> <span class="hljs-attr">type</span>=<span class="hljs-string">&quot;text&quot;</span>/&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">button</span> <span class="hljs-attr">onclick</span>=<span class="hljs-string">&quot;send()&quot;</span>&gt;</span>Send<span class="hljs-tag">&lt;/<span class="hljs-name">button</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">button</span> <span class="hljs-attr">onclick</span>=<span class="hljs-string">&quot;closeWebSocket()&quot;</span>&gt;</span>Close<span class="hljs-tag">&lt;/<span class="hljs-name">button</span>&gt;</span>
<span class="hljs-tag">&lt;<span class="hljs-name">div</span> <span class="hljs-attr">id</span>=<span class="hljs-string">&quot;message&quot;</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">div</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">body</span>&gt;</span>

<span class="hljs-tag">&lt;<span class="hljs-name">script</span> <span class="hljs-attr">type</span>=<span class="hljs-string">&quot;text/javascript&quot;</span>&gt;</span><span class="javascript">
    <span class="hljs-keyword">var</span> websocket = <span class="hljs-literal">null</span>;

    <span class="hljs-comment">//&#x5224;&#x65AD;&#x5F53;&#x524D;&#x6D4F;&#x89C8;&#x5668;&#x662F;&#x5426;&#x652F;&#x6301;WebSocket</span>
    <span class="hljs-keyword">if</span> (<span class="hljs-string">&apos;WebSocket&apos;</span> <span class="hljs-keyword">in</span> <span class="hljs-built_in">window</span>) {
        websocket = <span class="hljs-keyword">new</span> WebSocket(<span class="hljs-string">&quot;ws://localhost:8080/websocket&quot;</span>);
    }
    <span class="hljs-keyword">else</span> {
        alert(<span class="hljs-string">&apos;Not support websocket&apos;</span>)
    }

    <span class="hljs-comment">//&#x8FDE;&#x63A5;&#x53D1;&#x751F;&#x9519;&#x8BEF;&#x7684;&#x56DE;&#x8C03;&#x65B9;&#x6CD5;</span>
    websocket.onerror = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) </span>{
        setMessageInnerHTML(<span class="hljs-string">&quot;error&quot;</span>);
    };

    <span class="hljs-comment">//&#x8FDE;&#x63A5;&#x6210;&#x529F;&#x5EFA;&#x7ACB;&#x7684;&#x56DE;&#x8C03;&#x65B9;&#x6CD5;</span>
    websocket.onopen = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
        setMessageInnerHTML(<span class="hljs-string">&quot;open&quot;</span>);
    }

    <span class="hljs-comment">//&#x63A5;&#x6536;&#x5230;&#x6D88;&#x606F;&#x7684;&#x56DE;&#x8C03;&#x65B9;&#x6CD5;</span>
    websocket.onmessage = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params">event</span>) </span>{
        setMessageInnerHTML(event.data);
    }

    <span class="hljs-comment">//&#x8FDE;&#x63A5;&#x5173;&#x95ED;&#x7684;&#x56DE;&#x8C03;&#x65B9;&#x6CD5;</span>
    websocket.onclose = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) </span>{
        setMessageInnerHTML(<span class="hljs-string">&quot;close&quot;</span>);
    }

    <span class="hljs-comment">//&#x76D1;&#x542C;&#x7A97;&#x53E3;&#x5173;&#x95ED;&#x4E8B;&#x4EF6;&#xFF0C;&#x5F53;&#x7A97;&#x53E3;&#x5173;&#x95ED;&#x65F6;&#xFF0C;&#x4E3B;&#x52A8;&#x53BB;&#x5173;&#x95ED;websocket&#x8FDE;&#x63A5;&#xFF0C;&#x9632;&#x6B62;&#x8FDE;&#x63A5;&#x8FD8;&#x6CA1;&#x65AD;&#x5F00;&#x5C31;&#x5173;&#x95ED;&#x7A97;&#x53E3;&#xFF0C;server&#x7AEF;&#x4F1A;&#x629B;&#x5F02;&#x5E38;&#x3002;</span>
    <span class="hljs-built_in">window</span>.onbeforeunload = <span class="hljs-function"><span class="hljs-keyword">function</span> (<span class="hljs-params"></span>) </span>{
        websocket.close();
    }

    <span class="hljs-comment">//&#x5C06;&#x6D88;&#x606F;&#x663E;&#x793A;&#x5728;&#x7F51;&#x9875;&#x4E0A;</span>
    <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">setMessageInnerHTML</span>(<span class="hljs-params">innerHTML</span>) </span>{
        <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;message&apos;</span>).innerHTML += innerHTML + <span class="hljs-string">&apos;&lt;br/&gt;&apos;</span>;
    }

    <span class="hljs-comment">//&#x5173;&#x95ED;&#x8FDE;&#x63A5;</span>
    <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">closeWebSocket</span>(<span class="hljs-params"></span>) </span>{
        websocket.close();
    }

    <span class="hljs-comment">//&#x53D1;&#x9001;&#x6D88;&#x606F;</span>
    <span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">send</span>(<span class="hljs-params"></span>) </span>{
        <span class="hljs-keyword">var</span> message = <span class="hljs-built_in">document</span>.getElementById(<span class="hljs-string">&apos;text&apos;</span>).value;
        websocket.send(message);
    }
</span><span class="hljs-tag">&lt;/<span class="hljs-name">script</span>&gt;</span>
<span class="hljs-tag">&lt;/<span class="hljs-name">html</span>&gt;</span>
</code></pre>
<h2 id="&#x6D4B;&#x8BD5;">&#x6D4B;&#x8BD5;</h2>
<p>&#x63A5;&#x4E0B;&#x6765;&#x4FBF;&#x80FD;&#x76F4;&#x63A5;&#x542F;&#x52A8;websocket&#x8FDB;&#x884C;&#x8BBF;&#x95EE;&#x4E86;&#xFF0C;&#x5177;&#x4F53;&#x7684;&#x6269;&#x5C55;&#x53EF;&#x4EE5;&#x6839;&#x636E;&#x4F60;&#x7684;&#x4E1A;&#x52A1;&#x9700;&#x6C42;&#x8FDB;&#x884C;&#x589E;&#x52A0;&#x3002;
&#x5176;&#x5B9E;websocket&#x5C31;&#x662F;&#x57FA;&#x4E8E;http&#x534F;&#x8BAE;&#x7684;&#x5347;&#x7EA7;&#xFF0C;&#x5728;http&#x7684;headers&#x4E2D;&#x6709;&#x4E00;&#x4E2A;header&#x540D;&#x4E3A;Upgrade&#xFF0C;&#x7528;&#x6765;&#x5BF9;http&#x534F;&#x8BAE;&#x8FDB;&#x884C;&#x5347;&#x7EA7;&#xFF0C;&#x4ECE;&#x800C;&#x6362;&#x7528;&#x5176;&#x4ED6;&#x7684;&#x534F;&#x8BAE;&#xFF0C;&#x5728;&#x672C;&#x4F8B;&#x4E2D;&#xFF0C;&#x4E3A;Upgrade:websocket</p>

                                
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